Tank



l Patented F eb. 15, Y1927. I

UNITED STATES PATENT Gris.

INOS B. TANNER, OF CHICAGO, ILLINOIS, ASSIGNOR T JOSEPH E. NELSON & SONS, OF

CHICAGO, ILLINOIS, A OOPABTNERSHIP OoNsIsTrNe on JOHN E. NELSON AND.

WILLIAM H. NELSON. Y

TANK.

Application filed June 27, 1925. serial No. 40,022.

My invention relates to tanks employing lconical concrete bottoms and employed as settling tanks in Water softening or liquid treating equipment and containing reactionv chambers in Which ravv vvaterpand softening chemicals are initially received.

' In carrying out my invention a platform of rails is moulded into the sides of the con- Y crete bottom of suoli tank to reinforce the concrete'and serving as a support for the reaction chamber Whose bottom end is open and communicates with the settling tank through the platform.A i

The preferred form of the invention is l5 shown in the accompanying drawingl in which Fig. 1 is a view of a tank, partially in elevation and partially in section,

vequipped in accordance with my invention;

Fig. 2 is a View, on a largerscale, of a part of the structure as it appears in Fig. 1 Fig 3 is a vievv, on a smaller scale, on line 3-3 of Fig. 1; and Fig. 4L is a vieW,ron a larger scale, on line H of Fig. 1.

The settling tank has a body portion 1 preferably formed of uprightvvooden staves held together by hoops 2 that are preferably in the form of rods. The tank bodyvl has .1

a moulded concrete relatively thin conical bottom 3 formed With an outer ledge' a at so its larger and upper end upon which vthe Wooden tank body rests and an annular up- Vconical Wall portion; of a transverse plat-v Y per continuation 5. about which the lovver end of the tank body is disposed and against Whi'ch the tank body is closely confined by the hoops 2. A surrounding horizontal annular shoulder 6 is included in tlie"formation of thebottom continuation `5 a-nd is snugly received in anl internal horizontal annular groove 7 formed Within the lower end of the tank body, whereby the joint between the tank/body and its concrete bottom is made uid tight. The fluid tight assembly `of the tank body and tank bottom may be reinforced by calking 6. y

Vmy name.

Where the tank isl employed as a settling.

relatively thin concrete portion `3 and is'locatedy substantially midvvay'between the top and bottom of Vthis VWall portion, thereby servingk most effectively to reinforce the same. The chamber 8 is open at its bottom .end so that the intermiXed Water and softening chemical may flow .downwardly `therefrom through the spaces in the platformv Y into the settling tank. The platform not mouldedl into an intermediate portion of the tapering part of the concrete bottom, also serves to reinforceV this bottom. To this end the ends ofthe railsv comprising the platform `"may carry cross bars 10 about kWhich the intermediate portion of the tapering partV of the concrete tank bottom is moulded.V

Features not herein claimed form the subject matter of a division of this application, Serial No. 83,414, filed. January. 22, 1926. Having thus Vdescribed my invention, I claim:

The combination With a settling tank hav-v ing a bottom of concrete formed with a th`n form moulded into an intermediate part of said thin conical Wall portion substantf ally midway between the top and bottom of said vvall portion and serving to reinforce the tank carried'by saidplatform and Whose throughsaid platform.

Inl Witness whereof, I hereunto subscribe iNos B. Taiiisinal 6o only serves to support the tank, but-,being l 8() same; and a reaction chamber Within the A 

